If an ATM is posted early without the tag it runs the risk of confusing customers and hurting your rating. Bitcoin Exchange Definition A bitcoin exchange is a digital marketplace where traders can buy and sell bitcoins using different fiat currencies or altcoins. Typically this step will require a valid drivers license, although a passport can be used in most cases as well. At most ATMs, no personal information is required. Israel’s financial center and one of the world’s leading cities for startups has 58 merchants accepting bitcoin and four bitcoin ATMs in a population of , In addition to the cities listed above, certain regions are also becoming crypto ho spots in terms of Bitcoin acceptance and cryptocurrency interest more generally. How to Measure Bitcoin Adoption.